The Arithmetic operators are used to perform arithmetic operations on numeric values of type int, float, double, short and byte. Assignment operators are also considered as arithmetic operators.

Here is the complete list of arithmetic operators:

Operator	Result
+	Addition
–	Subtraction (also unary minus)
*	Multiplication
/	Division
%	Modulus
++	Increment
+=	Addition assignment
-=	Subtraction assignment
*=	Multiplication assignment
/=	Division assignment
%=	Modulus assignment
—	Decrement

An assignment statement has three elements:

1. The variable to store the result,
2. The assignment operator: =,
3. An arithmetic expression

For Example, Here the assignment operator will add value 5 on the previous value of a.

int a=1;
a+=5;

See Also :

• Java : Other Type of Operators
• Java : Operators Precedence in Expression

Arithmetic Operators Example

public class ArithmaticOperatorTest {

	public static void main(String[] args) {
		ArithmaticOperatorTest test=new ArithmaticOperatorTest();
		test.testArithmaticOperatorWithIntegers();
		test.testArithmaticOperatorWithFloat();
		test.testModulusOperator();
                test.testAssignmentOperators();
	}
	public void testArithmaticOperatorWithIntegers()
	{
		// arithmetic using integers
	     System.out.println("Integer Arithmetic Operations");
	     int a = 2 + 2;
	     int b = a * 3;
	     int c = b / 5;
	     int d = c - a;
	     int e = -d;
	     System.out.println("a = " + a);
	     System.out.println("b = " + b);
	     System.out.println("c = " + c);
	     System.out.println("d = " + d);
	     System.out.println("e = " + e);
	}

	public void testArithmaticOperatorWithFloat()
	{
		 int a=2;
		// arithmetic using doubles
	     System.out.println("\nFloating Point Arithmetic Operations");
	     double da = 2 + 2;
	     double db = da * 3;
	     double dc = db / 5;
	     double dd = dc - a;
	     double de = -dd;
	     System.out.println("da = " + da);
	     System.out.println("db = " + db);
	     System.out.println("dc = " + dc);
	     System.out.println("dd = " + dd);
	     System.out.println("de = " + de);
	}

	public void testModulusOperator()
	{
		 //Modulus :Modulus operator %: obtain the remainder after a division
		 System.out.println("\nModulus Arithmetic Operator");
	     int a = 5 % 2;
	     int b = 13 % 3;
	     int c = 8 % -3;

	     System.out.println(a);
	     System.out.println(b);
	     System.out.println(c);
	}

     public void testAssignmentOperator()
{ 			

System.out.println("Assignment Operators");
int a = 1;
int b = 2;
int c = 3;
a += 5;
b *= 4;
c += a * b;
c %= 6;
System.out.println("a = " + a);
System.out.println("b = " + b);
System.out.println("c = " + c);

}
}

Output

Integer Arithmetic Operations
a = 4
b = 12
c = 2
d = -2
e = 2

Floating Point Arithmetic Operations
da = 4.0
db = 12.0
dc = 2.4
dd = 0.3999999999999999
de = -0.3999999999999999

Modulus Arithmetic Operator
1
1
2
Assignment Operators
5
8
43
7